[名词解释] 原发性视神经萎缩

尿毒症伴高血钾时，最有效的治疗方法是() ["A．输入小苏打水","B．输入钙剂","C．输入高渗葡萄糖加胰岛素","D．血液透析","E．口服钠型阳离子交换树脂"] 肾小球肾病的主要临床特点是() ["A．肾功能减退","B．出血性膀胱炎","C．大量蛋白尿","D．高血压","E．尿中纤维蛋白降解产物增加"] 视神经萎缩 偏盲型视野 判断对比剂过敏的依据，正确的是() ["A．休克","B．便秘","C．打嗝","D．恶心呕吐","E．以上都是"] 原发性视神经萎缩